Glass holder with ABZ/ABG

Comprehensive guide to certified glass holders and glass clamps with abZ and aBG certification

In modern architecture, sophisticated metalwork and the installation of contemporary glass balustrades, safety, absolute compliance with standards and durable, high-quality materials are paramount. When it comes to fall-protection glazing – for example on balconies, terraces, French balconies or prestigious staircases in public, commercial and private spaces – standard fixings are no longer sufficient. In such cases, glass holders and glass clamps with a General Building Authority Approval (abZ) or a General Type Approval (aBG) are indispensable. They provide planners, structural engineers, architects and tradespeople with the legal certainty required by law that the entire system complies with the strict requirements of German building regulations.

The legal significance of abZ and aBG in building regulations

The abbreviation ‘abZ’ refers to the general building authority approval for an individual product, whilst modern and complex construction methods often fall under a general type approval (aBG), which regulates the correct assembly and installation of the entire system. These official certificates are issued by the German Institute for Building Technology (DIBt) following strict, standardised test procedures. They certify that the glass holder or glass clamp can safely bear static loads such as wind forces or the characteristic contact pressure exerted by people, and transfer these loads to the supporting structure. Without these official certificates, the use of glass clamps in areas regulated by building authorities for fall-protection glazing is generally not permitted.

Design, geometry and universal configurations

To meet a wide range of structural requirements and aesthetic preferences, our range comprises various tried-and-tested geometries and designs. From compact standard dimensions to large-scale designs, we cater for every structural requirement. Each component is specifically designed to combine maximum mechanical stability with a delicate and modern design. Depending on the structural requirements, you can choose between classic designs for straight lines and flexible articulated variants for complex angular solutions.

Precision-fit connectors for tubes and flat substructures

Professional installation requires the glass holder to be perfectly matched to the respective substructure. In our shop, you’ll find a wide-ranging portfolio of precision-fit connectors that enable easy mounting on various tubular profiles or flat surfaces:

• Straight connectors: Ideal for direct mounting on flat walls, flat steel or square or rectangular post tubes.
• Pipe connectors for slim profiles: Precise radius adaptation for narrow round tubes and support tubes.
• Pipe connectors for standard diameters: The common standard in modern balustrade construction for seamless transitions on round handrails.
• Pipe connectors for solid profiles: Robust design for thicker pipes in commercial or high-stress applications.
• Pipe connectors for large-scale projects: Maximum stability for solid post structures with large pipe diameters.

A wide range of materials and surface finishes for every application

Choosing the right material determines the corrosion resistance and visual appeal of the glass balustrade. At FeNau, you can obtain glass holders in a range of high-quality materials and surface finishes:

• V2A stainless steel (AISI 304): The ideal choice for sheltered outdoor areas and all interior fittings, with an elegant, polished finish.
• Stainless steel V4A (AISI 316): The most corrosion-resistant stainless steel for demanding environments, coastal regions, swimming pools or areas exposed to chlorine.
• High-gloss polished finishes: For exclusive, brilliant accents and the highest aesthetic standards on façades or in stairwells.
• Die-cast zinc and raw zinc: Cost-effective basic variants for sheltered areas or customised finishing.
• Powder-coated surfaces in RAL colours (e.g. anthracite or black): Perfectly tailored to modern design trends in residential and industrial construction.
• Stainless steel effect: Visually almost indistinguishable from genuine stainless steel, this finish combines cost-effectiveness with an elegant metallic look.

Accessories, rubber kits and installation-critical safety

To ensure that a certified glass holder fulfils its full building regulation function in everyday use, all components must be precisely matched to one another. In addition to the main body, this includes, above all, the precisely fitting rubber sets, which must be carefully selected according to the glass thickness for ESG (single-pane safety glass) and VSG (laminated safety glass). The seals prevent direct metal contact, elastically absorb wind loads and protect the glass from damage. Supplementary locking pins engage positively with the holes drilled in the pane and, as a through-hole locking mechanism, offer the ultimate protection against the pane slipping. Always adhere strictly to the specifications in the relevant approval documents during installation.

Your benefits with FeNau glass holders with abZ and aBG

• Absolute legal certainty: Seamless compliance with all requirements of the state building regulations and the DIBt for fall-protection glazing.
• Maximum choice of models: A wide range of dimensions and designs to meet every structural challenge in balustrade construction.
• Wide range of finishes: V2A, V4A, high-gloss polished, powder-coated in RAL colours or with a stainless steel effect.
• Flexible connections: Suitable for straight surfaces as well as various round tube diameters.
• Complete range of accessories: Precisely fitting rubber kits and locking pins for standard-compliant, safe and efficient installation.